Sony ICD-BM1 Service Manual page 20

ICD-BM1/BM1A/BM1AVTP/BM1B/BM1DR9
IC704 BU2090FS-E2 (MAIN Board (1/3))
12 BIT
CONTROL
SHIFT
CIRCUIT
REGISTER
12 BIT
STORAGE
REGISTER
1 2 3
IC705 AK6417CH-E2 (MAIN Board (1/3))
CS
1
INSTRUCTION
REGISTER
SK
2
3
DI
4
DO
20
16 15 14 13 12 11 10 9
OUTPUT
BUFFER
(OPEN DRAIN)
4 5 6 7 8
DATA
REGISTER
INSTRUCTION
DECODE
CONTROL
AND
CLOCK
GENERATION
BUFFERS
16
R/W AMPS
AND
AUTO ERASE
ADD
DECODER
VPP SW
VPP
VREF GENERATOR
16
EEPROM
16384bit
1024 16
8
VCC
7 RDY/BUSY
6
RESET
5
GND